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我们从一九七五年冬至一九七六年上半年,进行了小麦——玉米——黄豆带状间种套种试验。试验共七个点,面积二十四亩六分。试验结果,各种间套种作物的平均亩产是:小麦二百六十九斤,早玉米四百二十五斤,黄豆九十斤。上半年合计平均亩产七百八十四斤,比单造玉米,平均每亩增产二百六十八斤,增产53.2％。其中一亩二分平均亩产九百七十二斤,比同类型土地单作玉米的同期每亩增产四百七十二斤,增长百分之
From the winter of 1975 to the first half of 1976, we conducted a wheat-corn-soybean intercropping experiment. A total of seven test points, an area of 24 acres of six points. The test results showed that the average yields per mu of intercropping crops were: two hundred and sixty-nine kilograms of wheat, four hundred twenty-five kilograms of early corn, and ninety pounds of soybean. In the first half of the year, the average yield per mu was 784 kilograms, an increase of 268 kilograms per mu, or an increase of 53.2% over that of corn alone. The average acreage per acre was 972 kilograms, an increase of 472 kilograms per mu over the same period of the same type of land for corn, an increase of one percent